Re: [PATCH v11 16/19] KVM: xen: split up kvm_xen_set_evtchn_fast()

On 19 December 2023 16:11:06 GMT, Paul Durrant paul@xen.org wrote:

From: Paul Durrant pdurrant@amazon.com

The implementation of kvm_xen_set_evtchn_fast() is a rather lengthy piece of code that performs two operations: updating of the shared_info evtchn_pending mask, and updating of the vcpu_info evtchn_pending_sel mask. Introduce a separate function to perform each of those operations and re-work kvm_xen_set_evtchn_fast() to use them.

No functional change intended.

Signed-off-by: Paul Durrant <pdurrant@amazon.com

Reviewed-by: dwmw@amazon.co.uk

Would still like to see the xen_shinfo_test use an evtchn port# which triggers the bug in the precious version.